/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2010 huliqing, huliqing.cn@gmail.com
 *
 * This file is part of QBlog.
 * QBlog is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * QBlog is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with QBlog.  If not, see <http://www.gnu.org/licenses/>.
 *
 * 这个文件是QBlog的一部分。
 * 您可以单独使用或分发这个文件，但请不要移除这个头部声明信息.
 * QBlog是一个自由软件，您可以自由分发、修改其中的源代码或者重新发布它，
 * 新的任何修改后的重新发布版必须同样在遵守LGPL3或更后续的版本协议下发布.
 * 关于LGPL协议的细则请参考COPYING、COPYING.LESSER文件，
 * 您可以在QBlog的相关目录中获得LGPL协议的副本，
 * 如果没有找到，请连接到 http://www.gnu.org/licenses/ 查看。
 *
 * - Author: Huliqing
 * - Contact: huliqing.cn@gmail.com
 * - License: GNU Lesser General Public License (LGPL)
 * - Blog and source code availability: http://www.huliqing.name/
 */

package name.huliqing.qblog.processor.attr;

import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author huliqing
 */
public class AttributeFinder {
    private final static Logger logger = Logger.getLogger(AttributeFinder.class.getName());
    private static Map<String, Class<?>> renderTypes;

    public final static Attribute2 find(String renderType) {
        if (renderTypes == null) {
            renderTypes = new HashMap<String, Class<?>>(5);
            renderTypes.put(new AttrHtmlEditor().getAttrType(), AttrHtmlEditor.class);
            renderTypes.put(new AttrInputText().getAttrType(), AttrInputText.class);
            renderTypes.put(new AttrInputTextarea().getAttrType(), AttrInputTextarea.class);
            renderTypes.put(new AttrSelectBooleanCheckbox().getAttrType(), AttrSelectBooleanCheckbox.class);
            renderTypes.put(new AttrSelectManyCheckbox().getAttrType(), AttrSelectManyCheckbox.class);
            renderTypes.put(new AttrSelectOneRadio().getAttrType(), AttrSelectOneRadio.class);
        }
        if (!renderTypes.containsKey(renderType)) {
            logger.warning("Render type with name=" + renderType + " not found");
            return null;
        }
        try {
            return (Attribute2) renderTypes.get(renderType).newInstance();
        } catch (InstantiationException ex) {
            Logger.getLogger(AttributeFinder.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            Logger.getLogger(AttributeFinder.class.getName()).log(Level.SEVERE, null, ex);
        }
        return null;
    }
}
